The element mass matrix in the global coordinate system, \([\bar{m}]\), can be expressed in terms of the element mass matrix in local coordinate system \([\mathrm{m}]\) and the coordinate transformation matrix \([\lambda]\) as

a. \([\bar{m}]=[\lambda]^{T}[m]\)

b. \([\bar{m}]=[m][\lambda]\)

c. \([\bar{m}]=[\lambda]^{T}[m][\lambda]\)